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Fabrication · Test · Delivery

Bespoke builds

Custom Pressure Vessels

Vessels built around one process — capacity, ports, materials, liners and controls. The following are examples of product variations and customisations realised for specific applications and requirements. When designing an installation for a particular fluid application, or setting up a reliable controlled environment, the key is to maintain consistent control and measurement of parameters such as flow, vacuum, pressure and temperature across the system.

Request a quoteSee customisations
Built for
A single process
Quantities
Prototype to production run
On this page
Six delivered builds

From the workshop

RECENTBUILDS

Photographed before dispatch. Each one started as a standard SR-TEK vessel or a drawing from the customer.

What can change

WHAT CAN BE CHANGED

Anything mounted on the vessel is open to change. If what you need is not here, it is worth asking anyway.

  1. Extra ports and fittings

    Additional inlets, outlets and male ports welded at specific locations, with compression fittings, tube guides and dip tubes to suit the feed.

  2. PTFE lining

    A PTFE liner or a PTFE-sleeved dip tube where the fluid must not touch steel, or where cleaning between batches has to be quick.

  3. Graduations

    Volume markings on a transparent cylinder, so the operator reads the level off the vessel instead of a separate gauge.

  4. Agitation

    An air motor or electric motor with a stainless steel mixing element, for fluids that separate or settle while they stand.

  5. Level and pressure sensing

    Low level contact sensors, level monitoring probes and constant pressure sensors, wired for an automated line rather than a manual bench.

  6. Heating and cooling

    A temperature control jacket on the vessel body, for processes that only behave within a narrow temperature band.

Delivered builds

DELIVEREDCUSTOM BUILDS

Each of these started as a requirement we had not built before. Everything listed was specified, fitted and tested by SR-TEK before the vessel shipped.

  • Germany

    Four fully automated 3 L pressure tanks

    A complete automated system of four customised 3 L tanks. Each tank holds a constant level with an IFM level monitoring probe and sensor, and carries a SICK constant pressure sensor, a 316 stainless steel safety pressure relief valve, a 316 stainless steel fluid compression fitting and a 316 stainless steel dip tube with a PTFE sleeve and stainless steel suction filter. Used for a solvent-based fluid.

  • France

    Dual 5 L mixing pressure system

    Each tank holds a constant level with an IFM level monitoring probe and sensor, and carries an air motor with a stainless steel mixing element, a standard safety pressure relief valve and two extra ports with fluid compression fittings and tube guides. Used for a particle-based fluid.

  • France · OEM

    Two standard pressure-less vessels

    Each vessel was fitted with a low level contact sensor, an air motor with a stainless steel mixing element and a ½" stainless steel ball valve on the bottom outlet. Supplied to feed a low viscosity fluid.

  • Ireland · University

    Custom 1 L vacuum and pressure tank

    Fitted with a dual vacuum and pressure digital gauge, a stainless steel two-way ball valve at the top, a second two-way ball valve welded at the bottom of the tank body and a standard pressure relief valve. Used as both a vacuum and a pressure chamber to degas materials prior to dispensing.

  • France

    Clear tank converted into a vacuum chamber

    A standard clear tank fitted with a lid on hinges to make opening and closing easier, an analogue vacuum gauge, a Venturi manifold system and a stainless steel atmospheric valve with filter. Used as a testing vacuum chamber for bagged fluids.

  • Germany · Research lab

    1 L and 5 L tanks with external level sighting

    A stainless steel elbow and compression fitting at the top and the bottom of each reservoir body, a clear PTFE tube between them, extra ¼" male ports welded at specific locations of the body and a standard safety pressure relief valve. Used as test units in a research laboratory.

Two routes

TWO ROUTES TO ACUSTOM VESSEL

Most requirements are met faster by adapting something we already build. A custom vessel is the answer when the process will not fit a catalogue body.

  • Customisation

    Start from a standard vessel

    • Ports moved or added, PTFE liners, graduations, agitation, level sensing, heating jackets. The shortest route, and the pressure-bearing body is already proven.
    See documented customisations

  • Custom build

    Start from your specification

    • New geometry, a non-standard capacity, unusual materials or a fully instrumented system. Designed, built and tested around one process.
    See delivered builds

Before you ask

WHAT WE NEEDFROM YOU

Drawings are welcome but not required — a sketch and the figures below are enough for us to come back with a proposal.

Information that lets us quote a custom vessel
CapacityWorking volume in litres, and whether the vessel is filled by hand or from a feed line
Working pressureNormal and maximum pressure in bar or psi, and whether vacuum is involved
FluidWhat sits in the vessel: viscosity, particles, solvents, temperature
Ports and fittingsInlets, outlets, dip tubes, thread sizes and where they need to sit on the body
MaterialsAny constraint on the wetted parts — 316 stainless steel, a PTFE liner, acrylic or toughened glass
ControlsLevel sensing, pressure sensing, agitation, heating or cooling
Quantity and timingA single prototype or a production run, and the date you need it by

Custom build FAQ

TECHNICALQUESTIONS

  • How long does it take to build a custom pressure vessel?

    It depends on how much of the vessel is new. A standard body with extra ports or a liner is the fastest route, because the pressure-bearing part is already built and certified. A new geometry with instrumentation takes longer: the design is reviewed before anything is cut. We confirm a lead time with the quotation, once the specification is agreed.

  • Can you modify a standard SR-TEK vessel instead of building a new one?

    Yes, and it is usually the better answer. Most requirements are met by adding ports, a PTFE liner, graduations, agitation or level sensing to a catalogue vessel.

  • What drawings or data do I need to send for a custom vessel?

    Drawings help but are not required. Capacity, working and maximum pressure, the fluid, the ports you need and any material constraint are enough for a first proposal. The table above lists everything we normally ask for.

  • Which parts of a standard vessel can be customised?

    Ports and fittings, the lining, the cylinder markings, the lid, the agitation and the instrumentation. The pressure-bearing body stays as it was built and certified — everything attached to it is open to change.

  • Can a transparent CT vessel be fitted with extra ports?

    Yes. CT bodies can be fitted with added ports, graduations or a CTG and CTS configuration.

  • Are customised vessels still covered by warranty?

    Yes. The standard SR-TEK warranty applies: the products correspond with their specification at the time of delivery and are free from defects in material and workmanship for one year from delivery. A customisation carried out by SR-TEK is part of that specification. The full wording is in our Terms & Conditions.

Custom build

DISCUSS YOUR CUSTOM VESSEL

If the process will not fit anything in the catalogue, that is the enquiry our engineering team wants to see.

Request a quote